Several factors that determine the normal displacement of an air compressor

Several factors that determine the normal displacement of an air compressor

The displacement of an air compressor is actually a manifestation of the quality and efficiency of the equipment to a certain extent, and it is usually affected by several factors.

　　1. Leakage: There will be gaps between the rotors and between the rotor and the housing during operation, and they are not in direct contact, so gas leakage will occur. When the pressure increased gas leaks through the gap to the suction pipe and the sucking groove, the exhaust volume will be reduced. Therefore, to minimize leakage, seal teeth are made on the tooth top of the driven rotor, seal grooves are made on the root of the drive rotor, and ring or strip seal teeth are machined on the end surface. But if the sealing line is worn out, the leakage will increase and the exhaust will decrease.

　　 2. Suction state: The screw compressor is a positive displacement compressor, and the suction volume remains unchanged. When the suction temperature rises, or the suction pipe resistance is too large to reduce the suction pressure, the density of the gas decreases, and the gas exhaust volume is reduced accordingly.

　　3. Cooling effect: When the gas is compressed, the temperature will rise, and the temperature of the rotor and casing will also rise. During the suction process, the gas will be heated by the rotor and the casing to expand, reducing the suction volume. The rotor of an air compressor is sometimes cooled by oil, and the casing is cooled by water. The main reason is to lower the temperature. If the cooling is poor, the temperature will increase and the exhaust gas will decrease.

　　4. Rotation speed: The displacement of screw compressor is proportional to the rotation speed. The speed will vary with the voltage and frequency of the grid. When the voltage is reduced (for asynchronous motors) or the frequency is reduced, the speed will drop and the air volume will decrease.

　　 Therefore, to control the displacement of an air compressor, we must first know its influencing factors, so as to work out the most suitable operation plan.

Recent related posts

09/09/2020

Several factors that determine the normal displacement of an air compressor

The displacement of an air compressor is actually a manifestation of the quality and efficiency of the equipment to a certain extent, and it is usually affected by several factors.

09/09/2020

Suggestions and countermeasures for enterprises purchasing air compressors

For most companies, although the air compressor equipment for project construction is not a factor considered by the builder, it often becomes an important factor restricting the smooth construction of the project.

09/09/2020

Summary of knowledge points of screw air compressor

Classification of screw air compressor 　　 Screw compressors are also called screw compressors, which are divided into single screw compressors and twin screw compressors. The single screw compressor was developed by Sinn, France in the 1970s.

09/09/2020

Talking about the development process and use situation of Chinese vacuum drying equipment

Since ancient times, humans have been accustomed to drying materials with natural heat sources and natural ventilation. Until now, some rural areas still use solar heat to dry materials. Although these natural methods are energy-saving and environmentally friendly, it is an indisputable fact that production efficiency is low.

09/09/2020

The benefits of the implementation of the screw air compressor heat recovery project for corporate customers

During the long-term continuous operation of the screw air compressor, electrical energy is converted into mechanical energy, and mechanical energy is converted into wind energy. In the process of converting mechanical energy into wind energy, the air is compressed by a strong high pressure, causing its temperature to rise sharply.

09/09/2020

The characteristics of natural gas compressor and the introduction of CNG filling station

The main equipment of CNG filling station consists of compressor unit, metering device, gas purification dryer, gas storage device, charging sequence control panel, gas column, gas vending machine, etc. According to the different functions, it can be divided into three types: standard station, refueling mother station and refueling substation.

09/09/2020

The classification and function of filters

air filter The prototype of 　　 air filter is a respiratory protection device used by people to protect the breath. According to records, as early as the first century in Rome, people used hemp masks for protection when they purified mercury. In the long time since then, air filters have also made progress,

09/09/2020

The composition of air compressor oil

Air compressor coolant, referred to as air compressor oil in the industry, is indispensable for air compressor equipment. Air compressor oil plays a role in lubricating, protecting, reducing friction, sealing, rust prevention, and corrosion during the operation of the air compressor. There are two basic components of compressor oil.

09/09/2020

The development prospect of air filter

The prototype of the air filter is a respiratory protection device used by people to protect the breath. According to records, as early as the first century in Rome, people used hemp masks for protection when they purified mercury.

09/09/2020

The effect of using different air compressors in the same industry

People who are often in contact with air compressors should know the basic difference between a piston machine and a screw machine. They have obvious differences in structure, moving parts, operating parts, life span and performance.